Kilowatt Hours to Megajoules (kWh → MJ)
Formula
1 kWh = 3.6 MJConversion Table
| kWh | MJ |
|---|---|
| 0 | 0 |
| 1.0000 | 3.6000 |
| 2.0000 | 7.2000 |
| 3.0000 | 10.800 |
| 4.0000 | 14.400 |
| 5.0000 | 18.000 |
| 6.0000 | 21.600 |
| 7.0000 | 25.200 |
| 8.0000 | 28.800 |
| 9.0000 | 32.400 |
| 10.000 | 36.000 |
| 11.000 | 39.600 |
| 12.000 | 43.200 |
| 13.000 | 46.800 |
| 14.000 | 50.400 |
| 15.000 | 54.000 |
| 16.000 | 57.600 |
| 17.000 | 61.200 |
| 18.000 | 64.800 |
| 19.000 | 68.400 |
| kWh | MJ |
|---|---|
| 20.000 | 72.000 |
| 21.000 | 75.600 |
| 22.000 | 79.200 |
| 23.000 | 82.800 |
| 24.000 | 86.400 |
| 25.000 | 90.000 |
| 26.000 | 93.600 |
| 27.000 | 97.200 |
| 28.000 | 100.80 |
| 29.000 | 104.40 |
| 30.000 | 108.00 |
| 31.000 | 111.60 |
| 32.000 | 115.20 |
| 33.000 | 118.80 |
| 34.000 | 122.40 |
| 35.000 | 126.00 |
| 36.000 | 129.60 |
| 37.000 | 133.20 |
| 38.000 | 136.80 |
| 39.000 | 140.40 |
| kWh | MJ |
|---|---|
| 40.000 | 144.00 |
| 41.000 | 147.60 |
| 42.000 | 151.20 |
| 43.000 | 154.80 |
| 44.000 | 158.40 |
| 45.000 | 162.00 |
| 46.000 | 165.60 |
| 47.000 | 169.20 |
| 48.000 | 172.80 |
| 49.000 | 176.40 |
| 50.000 | 180.00 |
| 51.000 | 183.60 |
| 52.000 | 187.20 |
| 53.000 | 190.80 |
| 54.000 | 194.40 |
| 55.000 | 198.00 |
| 56.000 | 201.60 |
| 57.000 | 205.20 |
| 58.000 | 208.80 |
| 59.000 | 212.40 |
| kWh | MJ |
|---|---|
| 60.000 | 216.00 |
| 61.000 | 219.60 |
| 62.000 | 223.20 |
| 63.000 | 226.80 |
| 64.000 | 230.40 |
| 65.000 | 234.00 |
| 66.000 | 237.60 |
| 67.000 | 241.20 |
| 68.000 | 244.80 |
| 69.000 | 248.40 |
| 70.000 | 252.00 |
| 71.000 | 255.60 |
| 72.000 | 259.20 |
| 73.000 | 262.80 |
| 74.000 | 266.40 |
| 75.000 | 270.00 |
| 76.000 | 273.60 |
| 77.000 | 277.20 |
| 78.000 | 280.80 |
| 79.000 | 284.40 |
Kilowatt Hours to Megajoules Conversion
Converting Kilowatt Hours (kWh) to Megajoules (MJ) is a common energy and power conversion. 1 kWh equals 3.6 MJ. For example, 100 kWh is equal to 360 MJ.
Quick Mental Math: Kilowatt Hours to Megajoules
1 kilowatt-hour is 3.6 megajoules, so 5 kilowatt-hours is 18 megajoules.
Why is converting Kilowatt Hours to Megajoules tricky?
kilowatt hours to megajoules uses an awkward ratio, so people often round too early or move the decimal the wrong way.
Quick Reference Values
1 kWh = 3.6 MJ. 5 kWh = 18 MJ. 10 kWh = 36 MJ. 25 kWh = 90 MJ. 50 kWh = 180 MJ. 100 kWh = 360 MJ.
What is Kilowatt Hours?
Kilowatt Hours (kWh) is a unit of energy and power. A kilowatt-hour (kWh) measures electrical energy equivalent to one kilowatt of power supplied for one hour. It equals 3.6 million joules and is the standard billing unit for electricity consumption worldwide [bipm-si-brochure]. The kilowatt-hour emerged with widespread electric power usage in the late 19th and early 20th centuries. It became standardized as electric utilities adopted it for consumer energy measurement and billing [bipm-si-brochure]. The kWh is the universal unit for residential and commercial electricity billing globally, including in North America, Europe, and Asia. It is used extensively in energy management, engineering, and environmental reporting [nist-si-guide].
What is Megajoules?
Megajoules (MJ) is a unit of energy and power. A megajoule equals one million joules, the SI unit of energy, defined as the work done when applying a force of one newton over one meter. One MJ equals 1,000,000 J exactly. It is used to quantify large energy amounts in scientific, industrial, and engineering contexts [bipm-si-brochure]. The joule was named after James Prescott Joule in the 19th century, honoring his work on energy. The megajoule as a multiple of the joule was standardized with the SI system established by BIPM in 1960 to handle large-scale energy measurements [bipm-si-brochure]. Megajoules are widely used internationally in energy production, mechanical work quantification, and fuel energy content. Industries such as electricity generation, chemical manufacturing, and automotive engineering rely on MJ for reporting energy values [nist-si-guide].
Common Misspellings
People often search for this conversion using these alternate spellings: kilowatt hour, kw/h, kwh, kilowatthour, mega joules, megajoule, mega-joules, megajoules energy. All of these refer to the Kilowatt Hours to Megajoules conversion.